概述普通示波管用来显示高频信息时主要存在两方面的困难。困难之一是电子束通过偏转系统需要一定的渡越时间,当信号变化周期减小到与电子束通过偏转系统的渡越时间相比拟时,示波管偏转灵敏度开始急剧下降。解决这一问题的途径是采用慢波线作偏转系统。由于慢波线使信号 Overview There are two major difficulties with ordinary oscilloscopes when displaying high frequency information. One of the difficulties is that it takes a certain transit time for the electron beam to pass through the deflection system, and the deflection sensitivity of the oscilloscope begins to drop sharply as the period of the signal variation decreases to a time comparable to the transit time of the electron beam through the deflection system. The solution to this problem is to use a slow-wave line as the deflection system. Due to slow wave line make signal